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The Big Bang Theory stars Mayim Bialik and Brian Posehn recently reunited for an episode of Bialik’s Breakdown podcast. And while recalling their time on the series, the actors revealed how and why they loved hanging out in the comic book store on set. 

Jim Parsons, Simon Helberg, Kunal Nayyar, and Johnny Galecki in 'The Big Bang Theory'
Jim Parsons, Simon Helberg, Kunal Nayyar, and Johnny Galecki in ‘The Big Bang Theory’ | Michael Yarish/CBS via Getty Images

Mayim Bialik and Brian Posehn joined ‘The Big Bang Theory’ cast in later seasons

When The Big Bang Theory premiered in 2007, the core cast featured Jim Parsons, Kaley Cuoco, Johnny Galecki, Simon Helberg, and Kunal Nayyar. Bialik joined the series as a guest star in season 3. But her character, Amy Farah Fowler, became a series regular by season 4. 

But when talking to Posehn during her Breakdown podcast, Bialik recalled a moment while filming season 4 when she thought the showrunners wouldn’t ask her to return. “I was just pinned for episodes here and there,” she said. “I called my manager and —  said, ‘I  think this is probably my last episode, I feel like they’re just kind of done.”

Brian Posehn and Mayim Bialik in 'The Big Bang Theory'
Brian Posehn and Mayim Bialik in ‘The Big Bang Theory’

But luckily, just hours after she made that call to her manager, Bialik learned that she was being bumped to a series regular.  

Posehn joined the cast of The Big Bang Theory in season 6 as Bert Kibbler, a Caltech geologist who has a crush on Amy. He remained a recurring star until the series finale in 2019. 

Mayim Bialik and Brian Posehn felt like nerds on set

The Big Bang Theory is about a group of nerdy scientists who enjoy cosplay and science fiction. But according to Bialik and Posehn, the core cast wasn’t remotely as nerdy as their characters.

Posehn is a real-life Dungeons and Dragons aficionado and has a podcast called Nerd Poker that’s dedicated to the game. But when talking about his time on one of the nerdiest shows on TV, the actor said he didn’t quite fit in at first.

Brian Posehn, Kunal Nayyar, Mayim Bialik, Jim Parsons, Johnny Galecki, and Kaley Cuoco in 'The Big Bang Theory'
Brian Posehn, Kunal Nayyar, Mayim Bialik, Jim Parsons, Johnny Galecki, and Kaley Cuoco in ‘The Big Bang Theory’ | Sonja Flemming/CBS via Getty Images

“I felt even more out of place,” he told Bialik on Breakdown. “It was so funny to be on a show about nerds where I felt like the biggest nerd there. I would walk in and go, ‘God, these guys are so f***ing cool.”

Bialik noted that when she joined the cast, she didn’t feel like one of the cool kids either. She was friends with Johnny Galecki, who worked with her on Blossom, but suggested he was just as fancy as her co-star Kaley Cuoco. 

“I’ve known Johnny Galecki since I’m 13 years old,” Bialik revealed. “We knew each other,  we used to hang out and he was always like that cool guy. Like he wore fancy scarves and leather shoes with no laces and no socks and [it] was like he’d walked out of a magazine. And Kaley was on the cover of Cosmo.”

‘The Big Bang Theory’ stars loved hanging out in the comic book store on set

The comic book store was a regular stomping ground for Sheldon, Raj, Howard, and Leonard. But as Bialik and Posehn revealed, it was also the one place on set that they hung out in when they weren’t filming.

“I would hang out in the comic book store,” Bialik said on her podcast. 

“Me too,” added Posehn while noting the lack of Marvel titles in the store. “I was on the set like holding up DC comics going, ‘Oh, clearly because it’s Warner Bros., no Marvel allowed.” 

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Bialik revealed that she also loved perusing the rare and expensive comic book memorabilia the show’s production had in store. 

“Whenever I would give people the tour of our set, my favorite place to take them was my favorite room which was the production set design office,” she said. “Because we had like every [expensive] DC figurine that cost fifteen hundred dollars at the comic book store. We had them by the dozen. It was insane.”